The BGP Instability Report

The BGP Instability Report is updated daily. This report
was generated on 06 February 2026 06:25 (UTC+1000)

50 Most active ASes for the past 14 days

RANK	ASN	UPDs	%	Prefixes	UPDs/Prefix	AS NAME
1	9919	621831	5.30%	984	631.94	NCIC-TW New Century InfoComm Tech Co., Ltd., TW
2	5413	515904	4.40%	97	5318.60	WAVENET-AS5413, GB
3	16509	363664	3.10%	14295	25.44	AMAZON-02 - Amazon.com, Inc., US
4	9808	312404	2.66%	13809	22.62	CHINAMOBILE-CN China Mobile Communications Group Co., Ltd., CN
5	8151	211164	1.80%	12874	16.40	UNINET, MX
6	4780	199566	1.70%	1143	174.60	SEEDNET Digital United Inc., TW
7	39891	129072	1.10%	4969	25.98	ALJAWWALSTC-AS, SA
8	131596	85658	0.73%	1290	66.40	TBCOM-NET TBC, TW
9	56046	81987	0.70%	3430	23.90	CMNET-JIANGSU-AP China Mobile communications corporation, CN
10	7843	80840	0.69%	174	464.60	TWC-7843-BB - Charter Communications Inc, US
11	36903	75085	0.64%	1232	60.95	MT-MPLS, MA
12	6147	74257	0.63%	1261	58.89	INTEGRATEL PERU S.A.A., PE
13	44244	71567	0.61%	2462	29.07	IRANCELL-AS, IR
14	7821	67351	0.57%	17	3961.82	ZAYO-MN - Inteliquent, inc., US
15	328608	66091	0.56%	617	107.12	Africa-on-Cloud-AS, ZA
16	15766	61032	0.52%	15	4068.80	DOMICILIUM-AS, IM
17	10620	57530	0.49%	3446	16.69	Telmex Colombia S.A., CO
18	13188	54664	0.47%	1607	34.02	TRIOLAN, UA
19	11776	53212	0.45%	1907	27.90	ATLANTICBB-JOHNSTOWN - Breezeline, US
20	9829	50137	0.43%	1877	26.71	BSNL-NIB National Internet Backbone, IN
21	55410	49224	0.42%	1190	41.36	VIL-AS-AP Vodafone Idea Ltd, IN
22	265303	48602	0.41%	45	1080.04	BRASIL TECPAR \| AMIGO \| AVATO, BR
23	335	47669	0.41%	225	211.86	DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
24	9340	44786	0.38%	460	97.36	INDONET-AS-AP INDO Internet, PT, ID
25	400619	39548	0.34%	352	112.35	AROSS-AS - AROSSCLOUD INC., US
26	56047	39423	0.34%	1730	22.79	CMNET-HUNAN-AP China Mobile communications corporation, CN
27	61053	38568	0.33%	13	2966.77	VPSNET-AS, LT
28	56041	38322	0.33%	1835	20.88	CMNET-ZHEJIANG-AP China Mobile communications corporation, CN
29	24154	37635	0.32%	321	117.24	APBT-AS-TW Asia Pacific Broadband Fixed Lines Co., Ltd., TW
30	11664	36602	0.31%	1418	25.81	Techtel LMDS Comunicaciones Interactivas S.A., AR
31	31148	33230	0.28%	555	59.87	FREENET_LLC, UA
32	647	31885	0.27%	483	66.01	DNIC-ASBLK-00616-00665 - United States Department of Defense DoD, US
33	18403	30125	0.26%	4492	6.71	FPT-AS-AP FPT Telecom Company, VN
34	45899	29995	0.26%	3336	8.99	VNPT-AS-VN VNPT Corp, VN
35	42337	29918	0.26%	708	42.26	RESPINA-AS, IR
36	20473	29846	0.25%	1590	18.77	AS-VULTR - The Constant Company, LLC, US
37	58224	28583	0.24%	1171	24.41	TCI, IR
38	197207	27351	0.23%	873	31.33	MCCI-AS, IR
39	174	26035	0.22%	3846	6.77	COGENT-174 - Cogent Communications, LLC, US
40	14117	25253	0.22%	483	52.28	Telefonica del Sur S.A., CL
41	24444	24336	0.21%	1098	22.16	CMNET-V4SHANDONG-AS-AP Shandong Mobile Communication Company Limited, CN
42	17561	24307	0.21%	3447	7.05	LCS-AS-AP LARUS Limited, HK
43	22773	24129	0.21%	4783	5.04	ASN-CXA-ALL-CCI-22773-RDC - Cox Communications Inc., US
44	5371	23706	0.20%	300	79.02	DNIC-ASBLK-05120-05376 - United States Department of Defense DoD, US
45	12389	23688	0.20%	3179	7.45	ROSTELECOM-AS PJSC Rostelecom. Technical Team, RU
46	25019	23457	0.20%	1282	18.30	SAUDINETSTC-AS, SA
47	36914	23454	0.20%	583	40.23	KENET-AS, KE
48	28391	22650	0.19%	161	140.68	Universidad Juarez Autonoma de Tabasco, MX
49	11830	21969	0.19%	1992	11.03	Instituto Costarricense de Electricidad y Telecom., CR
50	20940	21874	0.19%	3957	5.53	AKAMAI-ASN1, NL
Total		4179186	35.63%

50 Most active ASes for the past 14 days

RANK	ASN	UPDs/Prefix	%	Prefixes	UPDs	AS NAME
1	149038	9782.5	0.17%	2	19565	UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
2	8613	5636.7	0.14%	3	16910	WAVENET-AS8613, GB
3	53571	5632.0	0.05%	14	5632	PCC-CORP - PRECISION CASTPARTS CORP, US
4	41383	5607.0	0.10%	8	11214	WOLASN, GB
5	56644	5509.0	0.05%	2	5509	SYNFS-AS, GB
6	208907	5467.0	0.05%	1	5467	RISING-BRIDGE-TECHNOLOGY, GB
7	197320	5413.0	0.05%	1	5413	NPA-AS, GB
8	5413	5318.6	4.40%	97	515904	WAVENET-AS5413, GB
9	33764	4491.0	0.04%	3	4491	AFRINIC-ZA-JNB-AS, MU
10	7954	4091.0	0.10%	3	12273	IMMENSE-NETWORKS - Immense Networks, LLC, US
11	15766	4068.8	0.52%	15	61032	DOMICILIUM-AS, IM
12	7821	3961.8	0.57%	17	67351	ZAYO-MN - Inteliquent, inc., US
13	213812	3731.0	0.06%	2	7462	ALFATEH, SY
14	29469	3653.0	0.06%	2	7306	GTU Khmelnitsky, Ukraine, UA
15	51897	3319.0	0.03%	1	3319	MIHAN, IR
16	134129	3279.3	0.08%	3	9838	IDNIC-IDNNUNET-ID PT IDN NUSANTARA NETWORK, ID
17	61053	2966.8	0.33%	13	38568	VPSNET-AS, LT
18	136225	2948.7	0.08%	3	8846	SMARTTELECOM-AS-AP Smart Telecom, PK
19	57670	2863.3	0.15%	6	17180	ASOPENWAY, UA
20	29052	2615.0	0.02%	1	2615	LYCOS-AS Lykos group is among the pioneers that shape the printing market, AT
21	32071	2614.0	0.02%	1	2614	WKU-AS - Western Kentucky University, US
22	21074	2541.0	0.04%	2	5082	ASN-AT-VR22, IT
23	136867	2196.7	0.06%	3	6590	IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
24	40138	2087.0	0.09%	5	10435	MDNET - Mach Dilemma, LLC, US
25	134659	1985.5	0.03%	2	3971	IDNIC-DISKOMINFODKI-AS-ID Diskominfo DKI Jakarta, ID
26	401017	1924.0	0.02%	1	1924	AAICE-ASN - AAICE, US
27	206467	1878.7	0.05%	3	5636	PROTECH-COMMS, GB
28	13341	1844.2	0.06%	5	7377	TRANQUILITY - Tranquility Internet Services Inc., US
29	12357	1764.1	0.11%	17	12349	COMUNITEL SPAIN, ES
30	200070	1722.0	0.01%	4	1722	CZNIC-AS2, CZ
31	8791	1717.0	0.04%	3	5151	FOEHN, GB
32	269185	1694.5	0.03%	5	3389	Globalfiber Telecom LTDA, BR
33	265566	1664.7	0.04%	3	4994	TELESISTEMAS PENINSULARES SA DE CV, MX
34	329401	1492.0	0.03%	2	2984	Fastr-Connect, ZA
35	202364	1431.8	0.05%	4	5727	GRIDH, GB
36	61137	1423.9	0.08%	7	9967	ANKABUTSERVICES, AE
37	36719	1422.0	0.01%	1	1422	MMU-53-AS-NET - Mount Mercy University, US
38	140459	1410.0	0.01%	1	1410	STREAKY-AS-ID PT Mikrotik Indonesia Streaky, ID
39	212033	1383.0	0.01%	1	1383	ENBITCON-AS, DE
40	37713	1301.5	0.02%	2	2603	Access-Communications-Ltd, MW
41	17794	1281.0	0.03%	13	3843	HTCL-ORANGE-HK-AP Hutchison Telephone Company Limited, HK
42	41538	1267.0	0.02%	2	2534	INSPIRED-AS, GB
43	395327	1204.0	0.01%	1	1204	BAYFEDCU - BAY FEDERAL CREDIT UNION, US
44	62037	1138.0	0.01%	1	1138	TFS-, BG
45	29874	1092.0	0.04%	4	4368	CAMBRI-AS1 - Cambridge Associates, US
46	265303	1080.0	0.41%	45	48602	BRASIL TECPAR \| AMIGO \| AVATO, BR
47	199276	1038.6	0.06%	7	7270	ERM, AL
48	43509	1022.8	0.04%	5	5114	BANK-VERLAG-GMBH, DE
49	265046	1015.3	0.03%	3	3046	NET-MAIS INFORMATICA, BR
50	43857	1010.0	0.07%
Total		137000.8	8.58%

50 Most active Prefixes for the past 14 days

RANK	PREFIX	UPDs	%	Origin AS -- AS NAME
1	207.167.116.0/22	12262	0.10%	7954 -- IMMENSE-NETWORKS - Immense Networks, LLC, US
2	130.137.231.0/24	10825	0.09%	16509 -- AMAZON-02 - Amazon.com, Inc., US
3	124.195.190.0/24	10480	0.09%	38684 -- CMBDAEJEON-AS-KR CMB Daejeon Broadcasting Co,.Ltd, KR
4	103.177.87.0/24	9884	0.08%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
5	103.177.86.0/24	9681	0.08%	149038 -- UCGCL-AS-AP UNIQUE COMM GROUP COMPANY LIMITED, MM
6	55.27.217.0/24	9385	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
7	55.67.56.0/24	9368	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
8	55.27.56.0/24	9365	0.08%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
9	103.84.53.0/24	8771	0.07%	136225 -- SMARTTELECOM-AS-AP Smart Telecom, PK
10	186.83.117.0/24	8557	0.07%	10620 -- Telmex Colombia S.A., CO
11	130.137.108.0/24	8065	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
12	173.82.125.0/24	7875	0.07%	16509 -- AMAZON-02 - Amazon.com, Inc., US
13	130.137.12.0/24	7843	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
14	130.137.230.0/24	7511	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
15	199.47.232.0/22	7329	0.06%	13341 -- TRANQUILITY - Tranquility Internet Services Inc., US
16	201.87.153.0/24	7300	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
17	200.150.165.0/24	7253	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
18	200.150.164.0/24	7249	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
19	55.74.56.0/24	7211	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
20	55.74.57.0/24	7196	0.06%	335 -- DNIC-ASBLK-00306-00371 - United States Department of Defense DoD, US
21	200.150.174.0/24	7192	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
22	201.87.149.0/24	7129	0.06%	265303 -- BRASIL TECPAR \| AMIGO \| AVATO, BR
23	130.137.219.0/24	6945	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
24	173.82.66.0/24	6860	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
25	84.205.66.0/24	6829	0.06%	12654 -- RIPE-NCC-RIS-AS Reseaux IP Europeens Network Coordination Centre RIPE NCC, NL
26	130.137.80.0/24	6789	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
27	130.137.79.0/24	6689	0.06%	16509 -- AMAZON-02 - Amazon.com, Inc., US
28	130.137.118.0/24	6653	0.06%	8987 -- AWS-GOVCLOUD AWS-GOVCLOUD, IE
29	103.104.136.0/24	6551	0.05%	136867 -- IDNIC-TELKOMTELSTRA-AS-ID PT. Teltranet Aplikasi Solusi Telkomtelstra, ID
30	186.251.129.0/24	6464	0.05%	53225 -- IPGLOBE INTERNET LTDA, BR
31	173.82.108.0/24	6443	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
32	173.82.63.0/24	6440	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
33	193.105.156.0/24	6339	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
34	173.82.67.0/24	6338	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
35	195.114.122.0/24	6333	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
36	195.114.123.0/24	6308	0.05%	8369 -- INTERSVYAZ-AS 38-B, Komsomolsky prospekt, RU
37	130.137.28.0/24	6277	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
38	130.137.89.0/24	6182	0.05%	14618 -- AMAZON-AES - Amazon.com, Inc., US
39	130.137.127.0/24	6166	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
40	130.137.124.0/24	6138	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
41	130.137.99.0/24	6136	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
42	130.137.140.0/24	6135	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
43	130.137.105.0/24	6124	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
44	130.137.130.0/24	6059	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
45	130.137.150.0/24	6054	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
46	130.137.111.0/24	6038	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
47	130.137.47.0/24	6035	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
48	130.137.26.0/24	6031	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
49	130.137.16.0/24	6030	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
50	130.137.227.0/24	6029	0.05%	16509 -- AMAZON-02 - Amazon.com, Inc., US
Total		365146	3.02%

14 Day BGP Profile: 23-January-2026 00:00 - 5-February-2026 23:59 (UTC+1000)

Number of BGP Update Messages:	26502855
Number of Prefix Updates:	11731463
Number of Prefix Withdrawals:	353601
Average Prefixes per BGP Update:	0.46
Average BGP Update Messages per second:	21.91
Average Prefix Updates per second:	9.99
Peak BGP Update Message Rate per second:	77585	(16:38:24 Wed, 28-Jan-2026)
Peak Prefix Update Rate per second:	1387	(05:13:14 Tue, 3-Feb-2026)
Peak Prefix Withdraw Rate per second:	28408	(05:51:56 Sun, 1-Feb-2026)
Prefix Count:	1075522
Updated Prefix Count:	709747
Stable Prefix Count:	365775
Origin AS Count:	77938
Updated Origin AS Count:	61406
Stable Origin AS Count:	16532
Unique Path Count:	572016
Updated Path Count:	416413
Stable Path Count:	155603

Hourly Average of Per-Second Updated and Withdrawn Prefix Rate

Hourly Peak of Per-Second Updated and Withdrawn Prefix Rate

Hourly Average Per-Second Updated Prefix Rate by Update Type

Hourly Peak of Per-Second Updated Prefix Rate by Update Type

BGP Table Activity

Cumulative Distribution of per-Prefix and per-AS Updates

Notes

The data has been gathered using a single eBGP peering with AS 131072. The observations of BGP path change are relative to this observation point. The updates are generated by a Quagga BGP implementation providing a timestamped log of incoming update messages. The timezone of this monitoring point is UTC+1000. Updates are processed on a 24 hour cycle.